extern Sprite* bigtux_left;
extern Sprite* bigtux_right_jump;
extern Sprite* bigtux_left_jump;
-extern Surface* ducktux_right;
-extern Surface* ducktux_left;
+extern Sprite* ducktux_right;
+extern Sprite* ducktux_left;
extern Surface* skidtux_right;
extern Surface* skidtux_left;
extern Surface* firetux_right[3];